C-frame sign



FIG. 1 is a perspective view of a C-frame sign;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a somewhat schematic bottom plan view thereof;

FIG. 5 is a somewhat schematic side elevation view thereof; and,

FIG. 6 is a somewhat schematic opposite side elevation view thereof.

The broken lines in the drawings are for illustrative purposes only and solely intended to show the environment in which the claimed design is used, and form no part of the claim. 

The ornamental design for a C-frame sign, as shown and described. 